Rotary valve for internal-combustion engines.



'UNITED STATES PATEN T OFFICE.

JOHN PLMER WILSON AND JOHN FRAZER- JACKSON, OF SYDNEY, NEW SOUTH W'ALES, l ,AUSTRALUL ROTARY VALVE FOR INTERNAL-COMBUTION ENGIN-ES.

To all 4H'mn it may confrrn Bc it known that we, JOHN IALMuu WiL- so Y and Joux Fauna JACKSON, subjects ol the King of Great jritain, residing'at Syd; Anefy, in the State 'of New South lVales, tominonwealth o't' .\ust1.'alia,.have invented eertain new and uselul`Imprm'ements in llotary` Valves vfor `Internal("omhustion llngines, of which the following' is a speeilieation.

rThis invention relates to improvements in rotary valves for internal eomhustion engines our olrieet heilig); to insure an olleetiye cooling of the valve4 and prevent' the possij hility ol. its sei/ting.

ln the p1' sent invention the rotatable eylintlrieal valve is hollow and is prorided internally with a series ol" tins, llanges or other projet-tions 'formingy a eotnparatirely large metallie radiating.: surface against. whieh they eool gaseous mixture from the earhureter veont'aets in its passage therethrough to the cylinder, or air may pass.therethrough to the atmosphere again or to or around a earhuretor ttor lie-ating tho' petrol or other 'volatile utotrireI 'i'luid therein). AThese pro' jeetions may hefforntetfl on the internal pe riphery ol"t:fhe v alre leaving a main passage and suhsidiary openings hetween the projeetions therehy maintaining the tuetal. and eonsetluently7 the external.periphery ol the \'al\'e. eool. luttiti 'order that the invention may he rlearly 'coinprehended, we now relier to theI tflrawings herewith, in whit-h zllfiguro l is a perspeetive- View partly molten away ol: a rotary valve titted with. `our improreinents.v Fie'. j is a longitudinal sertion thereol. Fig. $5 is a eross seetion. Fig. -l is a longitudinal set-tion olE :t modilication.

'lhe same numerals indirate the saine or lilto parts.

.5 isa hollow e \'lindrieal valye rotatable in a-eo`utpletneutary shaped easing, tf heine' thel inlet portJ romntuuieating with interior of the, valve and T a through exhaust', passage.

S represent internal projections iu, tho' form of tins.

Spemton 0f Letters Patent- Vul'ent'ed ,i )ein tt.. h5 E 5.

Application led August 31. 1915. Serial No. 48.245.

ln operation (llgsplto 3) the eool easeous mixture enters the hollow eyliuder at .l and impingres against the surfaces of the. in-

ternal tins S and the outsideof the exhaust passage T helore entering the port t leadingr to the engine cylinder hy whieh time a 'portion ot' the heat from the lius and exhaust'. has'heen transferred tothe gas.

ln the form illustrated in Figli, hoth the exhaust and inlet passages? and l' extend through the rotary \al\'e the easing tht-rent' heing eompletmnt'ary shaped and on travel olE the engine air enters the passage 1U and imping'iug' against the tins and exhaust pasA saire tends to maintain the \al\e eool hel'ere passingout through the opening lll" nhieh luayleatl direelly to the atmosphere again Ul l() (ll` lll'llllll il lllllllll'lllil'.

re do not restriel ourselvesl lo the prer-ise shape oll li-us or proieetions illustrated.

Haring' thus deserihed our intention whatv ,'we rlaiut as new and desire to proteet lty Letters Patent, iszrotary valve l'or Ainternal romlutstion en- L'ines eomprisinfg a e\'liudrieal \'al\'e hotly lormed with an iutalt'e passage therein extending lollglllttlillzllly oll llu llotly. iltltt'ttul `radiallyextending' l'ins projertiug;A l'roln'the.v

\\'itx tesses:

Alluxur lV. Umlaut-1, il. (l. CAMPBELL, 

